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MSR : Picture 1 regular

About MSR HyperFlow Microfilter

MSR HyperFlow Microfilter
The MSR HyperFlow Microfilter is an ideal filtration device to take with you into any foray in the great outdoors. With a high flow rate that allows you to pump approximately up to 3 liters per minute, it ensures that you no longer have to wait for a sip of fresh water. This product is extremely light at just 7.4 oz., so carrying it does not overburden your shoulders, even on a strenuous hike or expedition. It is ultra small with dimensions of 7 in. x 3.5 in., which makes packing very convenient, especially when you are trying to save on space. Cleaning is hassle-free, since you do not need any tools to do it. In addition, it comes with a Quick-Connect bottle adaptor, which makes it compatible with a large number of portable water containers. With the MSR HyperFlow Microfilter, you're assured of clean drinking water on any outdoor adventure!

This product can only be shipped to U.S. addresses.

MSR HyperFlow Microfilter Features

  • Ultralight: Just 7.4 oz. (209 g)
  • Ultra Small: Just 7x3.5 in. ( 17.8 x 8.3 cm) makes it easy to take along even when space is at a premium
  • High Flow Rate: Pumps more than 3 liters per minute or one liter every 20 strokes
  • Field-Maintainable: Can be cleaned repeatedly for flow recovery without tools
  • Also features a Quick Connect Bottle Adapter allowing direct connection to all MSR hydration products and a variety of other "wide mouth" containers and an advanced prefilter to prolong the life of your filter

MSR HyperFlow Microfilter Customer Reviews Powered by TurnTo®

Reviewed by 3 customers

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I carry this filter when in areas that have water sources so I don't have to carry so much water all the time. It's great, easy and fast to use, and the water tastes wonderful. I love how light and small it is; much lighter and smaller than another bottle and I don't need to worry much about running out of water. My filter is now the envy of all my friends and it's a great value!


Solid water filter


I purchased this water filter for backpacking in the mountains. I am quite happy with it after my third trip. The pump is easy to operate, compact, and lightweight. MSR paid attention to the details with this unit. No need to pull the water bladder out of your pack, just pull off the bite valve and the filter will attach directly to the hose for easy filling. The outer portion of the water outlet slides in to a platypus bladder screw top, or most standard plastic water bottles. I didn't try the Nalgene bottle adapter, opting to leave it behind to save weight. Who wants to carry a heavy container like that in to the back country anyhow? Cleaning the unit is easy, but getting the vales in the right direction can be confusing at first. I noticed when I handed the filter to someone unfamiliar with it, they needed a little extra help getting it right the first time. It's pretty easy to mess up and make the pump inoperable, but a little attention to the valves and you're golden.


Terrible product!!


I used this filter for a week and it started having major problems. I tried to back flush it and clean it like all of the other filtration systems I have used over the years but it just would not work. I do NOT recommend this product for any practical field application.

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Questions & Answers Powered by TurnTo®

Questions about this item:

Shopper  Do I need to buy replacement cartridges???
CHRISTINE K  Absolutely if you are depending the pump for your only water source. Otherwise carry a back -up pump. We were glad we did.
VICTOR D  Yes, always play it safe even though this is a great product
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